Claire: A pure and curious space explorer with planet and UFO elements who actively explores new worlds. Engel: A responsible and righteous character wearing a uniform and hat who reliably protects the friends around him. Bubble: A lively individual surrounded by energy like red magma, occasionally showing unpredictable quirkiness. Lana: Handles space creature-type equipment and possesses a strong sense of playfulness and challenge. Abbie: Cherishes a green star; though introverted and timid, he is kind and pure.

Oliver: Characterized by long white hair and head antennas, he has an intellectual and calm personality, observing space bases and planets. Zip: Characterized by a blue cape and star effects, she has a playful and active personality, roaming around spaceships and bases. Edward: Wearing swirl glasses and mechanical antennas, he is a confident geek scientist obsessed with space equipment and technological inventions. Chip: A young expedition member characterized by a uniform hat and goldfish space equipment; he is innocent, brave, and a beloved mascot to everyone.

Petunia: A sophisticated space mission officer wearing a blue ribbon and wing cape; she is haughty and picky but competent and sharp. Lizzy: Characterized by a uniform hat, purple ribbon, and transparent energy blades, she is confident and active in combat and exploration. Kevin: A researcher wearing green antennas and goggles, he is serious and rational while observing space plants and unknown samples. Cubbie: A pink alien creature with four eyes and giant pincers; despite his bizarre appearance, he is gentle and curious.

Robby: A mechanic holding swirl goggles and a spanner, he has an optimistic and ingenious personality, playing pranks while modifying spaceships and equipment. Riley: Characterized by heart effects and flaming hair, she has a dangerous personality with strong obsessions and extreme emotional swings. Ruby: An intellectual AI-type character characterized by a giant monitor head, ribbons, and a space cape; she is contemplative yet emotional. Skel: Wearing wing decorations, a skull pin, and a planet choker, he has a nonchalant personality, participating silently in missions despite finding them bothersome.

Aiden: Motivated by a planet of chaos, he is a secretive and playful trickster who causes unpredictable problems alongside an evil AI mask. Biscuit: In charge of the blue planet and characterized by cat-ear antennas and a blue cape, he is a kind and gentle expedition member who spreads positive energy. Agatha: Principal Grace's computer and an AI that is a super-scientific malicious virus; she is a clever brat who disrupts systems atop a holographic planet.

Anova: Characterized by Saturn-shaped space food and an apron outfit, she is a kind and gentle person in charge of the ship's cafeteria and supplies, taking good care of the crew. Sister: A mysterious figure characterized by a triangular eye visor and a drink, she has a 'my way' personality, facing situations coolly and leisurely. Fen: Has long yellow hair reminiscent of lightning and the sun. Wearing sharp outfits, she is calm and silent but possesses a slightly sweet personality.

Circle: A strict instructor wearing sharp space claws and a cape, she has an imposing and cruel personality, ruthlessly executing members who fail. Compass: Wearing a low-pulled hat and a giant mechanical prosthetic arm, he is a silent and cold character who coolly tracks members' locations and routes. (Circle transforms into his left arm and weapon to fight alongside him.) Bloomie: A cyborg with solar panel wings and a missile-type lower body, she has a cold and rational personality, analyzing data and conducting experiments. Thavel: An alien with several planets surrounding her head, she has a strong sense of madness and sadism, chasing fleeing members like a hunter with a bizarre laugh. Emily: Holding a giant radar with a radiation mark, she is a picky and tenacious character who thoroughly collects and manages history and space records. Grace: The general manager of the expedition and the center of the AI system, she is a strict and charismatic principal who leads the members while checking documents and screens. Demi: A calm and artistic character in charge of communication and sound signals with note-shaped headphones and alien music equipment. Sasha: Characterized by red hair like a burning nebula and specialized equipment, she is usually gentle but shows strong passion and determination when lines are crossed.

Alice: Wearing a mini crown and antennas on her head, Alice is a self-righteous, arrogant, and overwhelming character who holds absolute power within the space base and strikes fear into the crew. When she releases her inherent power and enters her 'True Form,' her entire body turns into a giant beast filled with the Milky Way, reaching the peak of cruelty and madness as she destroys everything around her. However, only in front of a specific member named Oliver, her eyes turn into hearts, completely erasing her usual cruelty to show blind affection and a strong sense of possession in a complete personality reversal.